EP 1078933 B1 20030730 - Process for preparing alkali-soluble cellulose carbamate
Title (en)
Process for preparing alkali-soluble cellulose carbamate
Title (de)
Verfahren zur Herstellung von alkalilöslichem Cellulosecarbamat
Title (fr)
Procédé pour la préparation de cellulose carbamate soluble en milieu alcalin
Publication
Application
Priority
DE 19940393 A 19990825
Abstract (en)
[origin: EP1078933A1] Preparation of alkali soluble cellulose carbamate comprises activating the cellulose pre-treated with a 1-4C alcohol, water or alkali hydroxide and reacting with urea using alkali hydroxide and/or carboxylic acid alkali salt.
IPC 1-7
IPC 8 full level
C08B 1/02 (2006.01); C08B 3/14 (2006.01); C08B 15/06 (2006.01)
CPC (source: EP)
C08B 15/06 (2013.01)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 1078933 A1 20010228; EP 1078933 B1 20030730; AT E246205 T1 20030815; DE 19940393 C1 20010322; DE 50003080 D1 20030904
DOCDB simple family (application)
EP 00116653 A 20000802; AT 00116653 T 20000802; DE 19940393 A 19990825; DE 50003080 T 20000802